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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Mon, 28 Sep 2026 23:47:44 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-97929 — ALSA: usbusx2y: validate URB actual_length in interrupt callback</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-97929</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;ALSA: usbusx2y: validate URB actual_length in interrupt callback&lt;/p&gt;
&lt;p&gt;i_usx2y_in04_int() processes the interrupt URB data without checking
urb-&amp;gt;actual_length.  A short transfer from a malfunctioning device
would cause the handler to process uninitialized heap data from the
kmalloc-allocated in04_buf, which is then copied to the mmap-accessible
ctl_snapshot[] array.&lt;/p&gt;
&lt;p&gt;Fix by using kzalloc() for in04_buf to zero-initialize the buffer,
and adding an actual_length check to skip processing on short
transfers while still resubmitting the URB.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;ALSA: usbusx2y: validate URB actual_length in interrupt callback&lt;/p&gt;
&lt;p&gt;i_usx2y_in04_int() processes the interrupt URB data without checking
urb-&amp;gt;actual_length.  A short transfer from a malfunctioning device
would cause the handler to process uninitialized heap data from the
kmalloc-allocated in04_buf, which is then copied to the mmap-accessible
ctl_snapshot[] array.&lt;/p&gt;
&lt;p&gt;Fix by using kzalloc() for in04_buf to zero-initialize the buffer,
and adding an actual_length check to skip processing on short
transfers while still resubmitting the URB.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-97929</guid>
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